Applications using a DHCP configured interface

w2vy — Thu, 29 Oct 2020 08:47:25 GMT

If I have server applications running that are listening

// Start Server srvr = socket(PF_INET, SOCK_STREAM, 0); /* Bind the socket to the port */ any.sin_family      = AF_INET; any.sin_port        = 80; any.sin_addr.s_addr = INADDR_ANY; bind(srvr, &any, sizeof(any)); listen(srvr, 0);

Will this server continue to run properly if the interface is moved from one LAN to another and the IP address assigned by DHCP changes?

What is the right way to re-activate DHCP when the cable is re-interted?

tom

Re: Applications using a DHCP configured interface

w2vy — Thu, 29 Oct 2020 08:47:27 GMT

FYI I ended up polling the link state with

ipcfg_get_link_active(IPCFG_default_enet_device)

and when the link went away, I would unbind the old IP and reenable DHCP to get the new IP

tom

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Applications using a DHCP configured interface

Re: Applications using a DHCP configured interface